Originally Posted by satimis
(..) Movie on web browser is jumping and without sound.
(..) Test Sound Left / Right works without problem.
.flv can be played with Movie Player, no jumping and with sound.
- /var/log/Xorg*.log (probably not but there may be "(WW|EE)"-related clues),
- your ~/.xession-error* log,
- mixer settings while the movie is playing?
- Other browsers? What plugin is used? It's sound configuration if any?
- per-application sound configuration (does one use ALSA or OSS or Pulse and the other not)?